Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent
1989-10-26
1991-02-05
Wiecking, David A.
Typewriting machines
Including interposed inking device for record-medium
Package for ribbon facilitating mounting of ribbon on...
4006931, B41J 3528
Patent
active
049900080
ABSTRACT:
A refillable ink ribbon cartridge for use in an electronic typewriter which includes a housing, a feed spool member having symmetric C-shaped springs for slidably receiving and removing a changeable feed spool, a winding spool member having a lever and a lever opener for slidably inserting and removing a winding spool, and a jagged wheel whereby the used ink ribbon cartridge can be reused and maintains a constant tension on the ink ribbon between the feed and winding spools.
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Keating Joseph R.
Wiecking David A.
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